DE10362003B4 - Device for tempering objects - Google Patents

Abstract

Apparatus for cooling fat-containing biscuits comprises a chamber with transverse rails (5.1, 5.2), along which the biscuits can be moved. A fan (11) is mounted at the base of the chamber with a cooling unit (12) below. This is divided into at least two zones (13, 14) of different temperature. Independent claims are included for: (a) a method for cooling fat-containing biscuits using the apparatus, in which air is sucked out of the chamber by the fan, over the cooling unit, and is fed back outside it to the rails; and (b) a method for cooling fat-containing biscuits using the apparatus in which the rails consist of hinged sections with ribs which support the biscuit molds.

Description

The The invention relates to a device for controlling the temperature of objects, in particular for cooling of consumables in the confiserie, with a hollow body with openings in his coat, which of a leadership for the objects is encompassed, wherein the hollow body at least one Venilator and this at least one tempering assigned.

In In many industrial areas, objects are produced in the connection cooled to the production or heated Need to become. For many Article, for example, in biscuits in fat pods, is dry air with a dew point of not higher than for example 10 ° C required. In humid air, the biscuits are too soft.

Around efficient cooling to reach the difference of the temperature of the cooling air to Shaping temperature of the chilled goods preferably kept big. The refrigerated goods, For example, fat masses, cools but because of the poor heat conduction and the bigger one Mass much slower than the corresponding mold. That I in the cooling air usually high humidity, it may be at the Form to form condensation, which in turn leads to water marks on the product leads.

In HOLTKAMP, Erhard, installation of a cooling line in the continuous production process of baked goods, in: The Cold, 1972, No. 1, page 21, 22 and 31 are different cooling tunnel types described. Et al be flat conveyor belts, spiral conveyors and spiral conveyors mentioned. It works the band in the form of an oval with several turns through the tunnel. The heat withdrawal takes place with refrigeration system with engine compressors and air cooled condensers. The evaporators and fans are placed between two helical towers.

Out For example, WO 99/0464 A2 is a device of the above-mentioned. kind known, in which in the hollow body or in whose interior air is introduced from below, those from air vents flows and subsequently the molds with cooling air applied. By this arrangement, the shape, as it is on a plate belt lies, cooled only from above and does not take into account the formation of condensation.

Of the present invention is based on the object, a device of the kind mentioned above, with the simple way and One way possible rapid tempering of the objects can be achieved, the tempering possible done from all sides should and the condensation is reduced.

To solve this task

to solution performs this task, that the leadership for the objects from individual carrier wings which are hinged together, wherein at least single carrier swing a transverse rib rises on which a mold rests with the objects.

advantageous Embodiments are described in the subclaims. Of highest importance is that the shape as possible open from all sides of the cooling air incident flow can be while through the cooler is transported. For this to be the case, the corresponding ones exist guides from individual carrier wings, from which project cross ribs, so that the shapes do not jump on the carrier wings rest, but are lifted off these. The cooling air under the forms are so swirled that the bottom of the mold is also running of cooling air incident flow becomes. This leads to a homogenization of the cooling, which is a significant advantage. By this arrangement, the shape flowed from both the top and bottom of the cooling air.

Advantageous can the forms also led laterally be, for which appropriate page boundaries are provided. These can for example, sit on the transverse ribs. So that you can join a Deflection by corresponding deflection rollers do not interfere with each other, at linear guide but forming a closed page boundary, they are as a side strip formed in the shape of horizontal Z. The page boundaries can also in height be arranged offset.

One Another idea concerns the improvement of the drive of the carrier wings. To the leadership the carrier swingarm a slider protrudes in a corresponding guide rail one. On this slider is on both sides each provided a toothing, in which a gear intervenes. The intervention is involute, so it is not comes to a punctual attack of the teeth, but the tooth the gear rolls arealwide the teeth off.

Prefers are the gears connected to a common drive. For this every gear is on an axis arranged together with a respective drive wheel, wherein also the driving wheels engage each other. In this case, only one drive wheel needs more than one Intermediate gear to be in communication with a drive wheel, wherein this drive wheel is arranged on a drive shaft.

Prefers the drive shaft is perpendicular to the hollow body, so that with a drive shaft all drive wheels for the Floors of the guides can be driven.

Conceivable is to provide only a single hollow body in the device. Is possible but also the connection of two or more hollow bodies, to those along the forms during be performed the cooling process. This should also be included in the present invention.

Further the tempering preferably has two tempering circuits. Have two temperature control circuits the advantage that they operate at different temperatures can be. This means that a temperature control circuit can be driven very low, so that in it the most condensation of humidity the cooling air he follows. Through it, for example, by means of a fan a smaller part of the cooling air depressed be so that only a little of the condensation in the total cooling air passes. The condensing is thus concentrated, for example, so that the condensate can be removed more concentrated.

One Another feature of the advantageous embodiment relates to a liquid catcher of the Can be assigned tempering. This liquid scavenger serves the purpose of the cooling air entrained condensed in the tempering, to collect smaller drops of liquid, to bigger ones liquid drops to bind, which are then no longer carried by the cooling air due to their severity can.

For example can do this in the liquid catcher a Baffle plate or baffle mat are provided, in which the liquid droplets seep, so that they are exposed only to a small extent of the flowing cooling air are. Such a baffle mat, for example, chrome steel chips or Plastic fibers exist and arranged between two perforated plates be. The heavy liquid drops are then collected by a drip pan below the liquid catcher.

figure description

Further Advantages and details of the invention will become apparent from the following Description of preferred embodiments as well as from the drawing; this shows in

1 a partially schematically illustrated plan view of an inventive device for controlling the temperature of objects;

2 a schematically illustrated longitudinal section through the device according to 1 along line II-II;

3 a plan view of a part of a guide according to the invention;

4 a cross section through the guide in the region of a drive with applied form;

5 a side view of the inventive guide in the region of a deflection;

6 a side view of part of the guide in the area of a contrary to 5 opposite deflection.

A device according to the invention for tempering objects which are in a mold 1 , Pallet or the like., Has in a machine housing 2 two hollow bodies 3 and 4 on. Every hollow body 3 and 4 is from a guide 5 for guiding the forms 1 embrace, with the forms 1 over an enema 6 in the lead 5.1 of the first hollow body 3 reach. The guides 5.1 and 5.2 encircle their respective hollow bodies 3 and 4 helical, like this in 2 is recognizable.

From the leadership 5.1 leads a straight line indicated by dash-dotted lines 7 in the upper region of the hollow body 3 to the leadership 5.2 of the hollow body 4 , where the leadership 5.2 downward spiral has. The leadership 5.2 then flows into an outlet 8th out.

The hollow body 3 / 4 can according to 2 closed at the top of a lid or be open. In his coat 9 are a variety of openings 10 molded, which are also aligned helically upwards or downwards. Preferably, the openings follow 10 the forms 1 that are on the leadership 5.1 / 5.2 are located.

In the lower area sits in the hollow body 3 / 4 a fan 11 , which air from the interior of the hollow body 3 / 4 sucks. This fan 11 is a tempering element 12 downstream, wherein the tempering 12 is designed as a heat exchanger. It has an internal cooling circuit 13 and an external cooling circuit 14 ,

Under the tempering element 12 there is a liquid trap 15 in which a baffle mat 16 is provided.

Below the liquid catcher 15 is a drip tray 17 arranged for liquid. The leadership 5.1 / 5.2 according to 4 a spiral path 18 on which the hollow body 3 and 4 circulates. On the Wendelbahn 18 are two driving wheels 19.1 and 19.2 supported by bearings being the driving wheels 19.1 and 19.2 engage each other.

The drive wheel 19.1 is about a Zwischenrad 20 with a drive wheel 21 connected. The drive wheel 21 sits on a drive shaft 22 on, as in 2 recognizable the drive shaft 22 a plurality of drive wheels 21 in the different floors of the channel 5.1 respectively. 5.2 drives.

The driving wheels 19.1 and 19.2 each have an axis A and B, around which they rotate. On each axis A and B also sits a gear 23.1 respectively. 23.2 on, which with a toothing 24.1 respectively. 24.2 on a slider 25 interact. The teeth 24.1 and 24.2 are on their gears 23.1 and 23.2 in a curvature tuned so that an involute-like engagement between teeth 24.1 respectively. 24.2 and gear 23.1 and 23.2 he follows.

The slider 25 slides in a rail 26 , which above the spiral path 18 is arranged, but this follows. Here is the slider 25 Part of a carrier swingarm 27 , in the 3 is better recognizable. A variety of carrier wings 27 are hinged together and thus form a transport path for the shape 1 , However, the shape is not sitting directly on a swing surface 28 on, but on a transverse ridge 29 from the swinging surface 28 rises.

On the cross rib 29 sit sideways each side limiter 30.1 respectively. 30.2 on, which as in 5 recognizable, have the shape of a flat lying Z. This will ensure that the page delimiter 30 overlap with a linear guide and thus a closed lateral boundary for the shape 1 form. With a deflection around a pulley 31 according to 5 can the page delimiter 30 diverge, but then overlap again in a straight line.

In another diversion according 6 is between the page delimiters 30 enough free space, so that they can be brought closer together.

The operation of the present invention is as follows:
The ventilator 11 sucks the air, as indicated by the arrows, from the interior of the hollow body 3 / 4 and presses the air through the tempering 12 , In particular, when the hollow body 3 / 4 closed at the top, creates a negative pressure in the hollow body and throughout the machine housing 2 a corresponding overpressure. As a result of the negative pressure in the hollow body 3 / 4 Air gets through the openings 10 sucked, leaving a considerable, later still to be described air circulation in the individual floors of the guides 5.1 / 5.2 arises.

The tempering element has the above-mentioned inner cooling circuit 13 and the external cooling circuit 14 , The inner cooling circuit is charged with a coolant which has the lowest possible temperature, but not below 0 ° C. The cooling temperature of the outer cooling circuit is higher. This means that the water content of the cooling air condenses in particular at the inner cooling circuit. The responsible for the cooling air part of the tempering works at a higher level. By mixing the two cooling circuits 13 and 14 a dew point is lowered below the usual value.

When the tempering element starts up, condensation water still forms on both cooling circuits. After a certain time, however, only condensate forms on the inner cooling circuit, where now the fan 11 can fulfill its second function perfectly. The condensate is blown down in the form of small drops of water from the fan at high speed down.

Would now be below the tempering 12 only a drip pan available, although a portion of the condensate would remain in this drip pan, but brought back into circulation due to the strong air flow. This means that a possible low dew point can not be reached.

Therefore, according to the invention between the sump 17 and the tempering 12 the liquid catcher 15 with his bounce mat 16 arranged. This baffle mat collects the small droplets of condensed water, with the droplets seeping through the baffle mat. Most of the air coming from the tempering element 12 exits, flows laterally to the liquid catcher 15 over and takes no liquid with it, as it seeps into the baffle mat. Only a minor part of the air penetrates the baffle mat, but is considerably slowed down here, so that this air flow no longer has the force that collects in the baffle mat to take heavy droplets and carry. These heavy drops drip down into the drip tray 17 from. That is, with the inventive concept is achieved that the cooling air dries to the desired dew point.

The dried air will now be back on the walls of the machine housing 2 along the guide 5.1 / 5.2 led to the top and there enters the individual floors of the guides 5.1 / 5.2 one. However, since the shapes of the swinging surfaces 28 are lifted off and on the transverse ribs 29 sit up, the cooling air can act on the bottom of the molds. This floor usually has a plurality of cavities in which there is a considerable turbulence of the cooling air, since the cooling air also in front of the openings 10 of the coat 9 dammed. These swirls are indicated by the corresponding arrows in 4 indicated. That is, by this arrangement, cooling air flows in the shape from above, from below, and from both sides, resulting in perfect heat release. The cooling of the objects is also comparatively. This has a very positive effect on the quality of the items.

Position Number List

Claims (15)

Device for controlling the temperature of objects, in particular for cooling of consumer goods in confectionery, with a hollow body ( 3 . 4 ) with openings ( 10 ) in his coat ( 9 ), which of a leadership ( 5.1 . 5.2 ) is embraced for the objects, wherein the hollow body ( 3 . 4 ) at least one fan ( 11 ) and this at least one tempering ( 12 ), characterized in that the guide ( 5.1 . 5.2 ) for the objects of individual bearer wings ( 27 ), which are hinged together, wherein at least individual carrier wings ( 27 ) a transverse rib ( 29 ), on which a mold ( 1 ) rests with the objects. Apparatus according to claim 1, characterized in that at least individual carrier wings ( 27 ) a one- or two-sided boundary ( 30 ) for the mold. Apparatus according to claim 2, characterized in that the side boundary ( 30 ) have a side strip in the form of a horizontal Z, wherein these side strips overlap in guiding position. Device according to one of claims 1 to 3, characterized in that of at least individual carrier wings ( 27 ) a slider ( 25 ) protruding in a rail ( 26 ) is guided, wherein on the slider ( 25 ) a toothing ( 24.1 . 24.2 ) is provided, in which from both sides in each case a gear ( 23.1 . 23.2 ) intervenes. Apparatus according to claim 4, characterized in that between toothing ( 24.1 . 24.2 ) and gears ( 23.1 . 23.2 ) an involute-type intervention takes place. Apparatus according to claim 4 or 5, characterized in that each gear ( 23.1 . 23.2 ) a drive wheel ( 19.1 . 19.2 ), which is on the same axis (A, B) as its gear ( 23.1 . 23.2 ), both driving wheels ( 19.1 . 19.2 ) are engaged with each other. Apparatus according to claim 6, characterized in that a drive wheel ( 19.1 ) via an intermediate wheel ( 20 ) with a drive wheel ( 21 ) on a drive shaft ( 22 ). Apparatus according to claim 7, characterized in that on the drive shaft ( 22 ) a plurality of drive wheels ( 21 ) on different floors of the tour ( 5.1 . 5.2 ) is arranged. Device according to one of claims 1 to 8, characterized in that the tempering ( 12 ) at least two temperature control circuits ( 13 . 14 ) having. Device according to one of claims 1 to 9, characterized in that below the tempering ( 12 ) a liquid trap ( 15 ) is arranged. Apparatus according to claim 10, characterized in that the liquid catcher ( 15 ) a baffle plate or baffle mat ( 16 ) for liquid droplets. Apparatus according to claim 10 or 11, characterized in that the liquid catcher ( 15 ) has two perforated plates with interposed chrome steel chips or plastic fibers. Device according to one of claims 1 to 12, characterized in that below the tempering ( 12 ) or the liquid catcher a collecting tray ( 17 ) is arranged. Device according to one of claims 1 to 13, characterized in that the temperature control circuits ( 13 . 14 ) have a different temperature. Apparatus according to claim 14, characterized in that a temperature control ( 13 ) has a lowest possible temperature near 0 ° -2 ° C, while the temperature of the other temperature control circuit ( 14 ) is at about 5 ° -8 ° C.